Log Message:
Some improvements and fixes:
 * Drop AUTO_MKDIRS.
   It is not works well with directory name contains "@". PR 38921.
 * Honor PKGMANDIR and PKGLOCALEDIR.
 * Add DESTDIR support
 * Instead of custom post-install target, patch to original install target.
   Now exaile command can take option arguments as man page said.

Bump PKGREVISION.